   (str/replace source-sans-ns symbol-regex (partial source-replacement old-sym new-sym)))
 
 (defn- after-platfrom-marker? [platform node]
-  (when-not (#{:uneval} (b/tag node))
-    (= platform (b/sexpr (z/left node)))))
+  (when-not (#{:uneval} (z/tag node))
+    (= platform (z/sexpr (z/left node)))))
 
 (defn- find-and-replace-platform-specific-subforms [platform ns-loc]
   (loop [loc         ns-loc

            [me.raynes.fs :as fs]
            [rewrite-clj.zip :as z]
            [rewrite-clj.node :as n]
            [rewrite-clj.zip.base :as b]
            [rewrite-clj.parser :as parser]
            [rewrite-clj.reader :as reader])
  (:import (java.io File FileNotFoundException)))


(defn- java-style-prefix?
  [old-sym node]
  (when-not (#{:uneval} (z/tag node))
    (when-let [node-sexpr (z/sexpr node)]
      (str/starts-with? node-sexpr (java-package old-sym)))))

(defn- libspec-prefix?
